On Mon, Oct 26, 2015 at 07:38:02PM -0400, John Snow wrote: > Not that you can request a >2GiB transaction, but that's why checking > for it makes no sense anymore. > > With the newer 'limit' parameter to prepare_buf, we no longer need a > static limit. The maximum limit is still 2GiB, but the limit parameter > is set to the current transaction size, which cannot surpass 32MiB > (512 * 65536). If the PRDT surpasses the transactional size, then, > we'll just carry out the normative underflow handling pathways instead > of needing an extra, strange pathway that worries about hitting some > logistical cap for the largest sglist we can support -- we'll never > even attempt to build one that big anymore. > > Reported-by: Kevin Wolf <kw...@redhat.com> > Signed-off-by: John Snow <js...@redhat.com> > --- > hw/ide/ahci.c | 30 ++++++++++++++---------------- > hw/ide/internal.h | 2 +- > hw/ide/pci.c | 7 ------- > 3 files changed, 15 insertions(+), 24 deletions(-)
Acked-by: Stefan Hajnoczi <stefa...@redhat.com>
